rudasill



2 Sheets-Sheet 2.

l (1wModelA A '13. A, RDASILL.

' CHURN.

Patented May 7,71889..

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UNITED STATES -PATENT OFFICE.

ELI A. RUDASILL, OF SHELBY, NORTH CAROLINA, ASSIGN OR OF ONE-HALF TOJOHN O. BEAM, OF SAME PLACE.

CHURN'.

SPECIFICATION forming part of Letters Patent No. 402,976, dated May 7,1889.

Application filed November 2, 1 8 8 8.

To all whom it may concern:

Be it known that I, ELI A. RUDASILL, a citizen of the United States,residing at Shelby, in the county of Cleveland and State of NorthCarolina, have invented certain new and useful Improvements in Churns;and I do hereby declare the following' tobe a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, which form part of this speciiication.

My invention relates to that class of devices known as reciprocatingchurns, and has for its object to provide means for a more easy andregular stroke of the dasher without friction than has heretofore beenfurnished, and also to provide means for forcing air to the bottom ofthe cream at each ascending movement of the dasher, which, together withpeculiarly-constructed beaters, produce violent agitation of the cream,reducing the usual time required for churning; and it consists in theconstruction and combination of parts hereinafter described, and moreparticularly pointed out in the claims.

Referring to the drawings, Figure 1 is a perspective view of myinvention. Fig. 2 is a side View of the upperpart thereof with thedasher broken away. Fig. 3 is avertical central section through thestandard or support and driving mechanism. Fig. iis across-sectionthrough the clip connecting the dasher to the guide-bar on the line :tof Fig. l. Fig. 5 is a vertical section of the two-part tubular dasher,showing a valve therein. Fig. 6 is a perspective view of a slightlymodiiied form of the upper portion of my device. Fig. 7 is a verticalsection of the same. Fig. 8 is a detail view of the slotted guide-bar orgib, having a recessed cross-barthereon; and Fig. 9 is a side view of abalance-wheel adapted to be applied to my modiiied construction.

Like letters of reference refer to corresponding parts in each figure ofthe drawings.

A represents the cover of a churn, having its body shown in dotted linesbelow. To the top of the cover is secured a foot, B, having a sleeve ornut on its upper sideintegral therewith, into which is screwed avertical rod, a.

Serial No. 289,804. (No model.)

A standard or support, C, having an eye, b, integral with its side isadj ustably secured upon the rod a by a set-screw, c, through the sideof the eye-piece. The standard C extends at some distance above the rodva, and has its upper end, d, turned downward vor parallel to its body,to form a bearing in its end and body for a journal, D, which carriesapinion, E, thereon between the turned end and body of the standard. Tothe side of the central portion of the standard O there is secured ajournal, e, which carries a gear wheel, F, that meshes with the pinionabove, and is operated by a crank attached to one side of the wheel. Onthe opposite side of the standard from the driving-gear thejournal-bearing is extended outward to form a collar, f, between whichand the hub g of the iiy-wheel there is a space for a guide-rod or gib,hereinafter described. Y

The fly-wheel G on or near the end of the journal D is constructed withone side heavier than the other to provide a balance to regulate andsteady the motion of the pitman. In the light side .of the fly-wheelthere is a slot extending from near the periphery toward the center, inwhich the pitman H is adjustably secured by a bolt and thumb-nut, h, forthe purpose of regulating the length of its throw.

On the lower portion of the opposite side of the standard C from thedriving-gear there is formed integral with the standard a dovetailedprojection, I, having its inclined sides z' extending toward each otherand the body of the standard. Upon the outer face of this dovetailedprojection there is attached a guide-bar, J, which may be cast or platemetal, by means of holding-clips j, which extend from the bar and arebent around upon the inclined sides t' of the projection, where theyslide up and down upon these faces as the bar is moved.

The upper portion of the guide-ban J is slotted or forked from its topdownward about two-thirds its length, and the forked sides K of theslotted portion extend upward upon each side of the journal D of thepin` ion, and are supported and held in place while in operation, asagainst any lateral movement, by the end of the collar f of the standardand the hub g of the fly-wheel.

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Tothe lower end of the slotted guide-bar J there is a pin, 7s, rigidlysecured, which extends outward and receives the lower end of the pitmanH upon its reduced portion,which is held thereon by means of a screw-nuton the end of the pin.

A coupling-arm, L, is riveted or otherwise rigidly secured to the sideof the guide-bar J, at a short distance above its lower end,whichextends outward beyond the edge of the bar at right angles thereto,forming a semicircular socket, l, that receives the dasher, which isheld therein by means of a thumb-screw, M. Lugs m are formed integralwith the guide-bar above and below the coupling-arm L, which are bentoutward at right angles to the face of the bar to provide abearing-surface at the edge of the bar for the dasher-rod to restagainst and steady its attachment in the coupling-arm.

The dasher-rod is composed of an upper tubular stem, N, which isadjustably telescoped within a lower tubular stem, O,which has securedto its lower portion, one above the other, two conical beaters, P, thelower edge of the bottom beater being on the same plane with the lowerend of the stem O,while the lower edge of the upper beater is at theuppermost portion of the lower beater. The beaters are each providedwith a series of vertical slots, p, extending from near their bottoms tothe top, with perforations between the slots at their lower ends.

The lower inelosed end of the upper tube, N, of the dasher-rod isprovided with avalve, n, of the same diameter as the tube, which looselyrests against its end and is held in position by a cord, o, attachedwithin the tube for the purpose of permitting air to enter the dasherwhen it makes its upward throw.

In operation as the driving-gear is worked the fly-wheel G is revolved,carrying the pitman, which is pivoted to the bottom of the slotted guidebar or gib J, which slides on the standard and is thrown up and downwith its forked upper end passing on each side of the journal of theiiy-wheel, and between its hub and the proj eeting collar of thestandard C, giving it a steady vertical motion, carrying the dasher,which is rigidly secured to its lower portion.

By the construction of the dasher it will be observed that it can beadjusted to any desired length by moving the tubes in or drawing themout from each other, and the valve lowered or raised, as may be desired,the lower tube, O, being extended downward through the lower beater, P.The air is forced out of the tube at a point below the beater, so thatwhen the dasher ascends the valve is opened, creating a vacuum in thebody of the cream which is quickly iilled by a rush of air 4 downthrough the tubular dasher, and as the downward stroke is quickly madethe valve is closed, confining the air within the cream, which producesan upward pressure and forcibly ejects the cream into the descendingconical beaters and through their openings, producing violentagit-ations of` the whole body.

As illustrated in Figs. 6, 7, and 8 of the drawings, I may slightlymodify a part of the driving mechanism of my device without departingfrom the spirit of my invention.

ln place of the pitman l-I, heretofore described as connected with theily-wheel G and lower part of the guide-bar or gib J, the guide bar maybe provided with lateral arms R, secured to the face of the sides K ofits slotted or forked portion about midway its length, or be cast in thesame piece therewith. These arms are made to extend at right angles tothe forked sides K, and have their faces provided with a deep broadgroove, r, to receive the enlarged end of a wrist-pin, S, which is fixedin the adjusting-slot of the ily-wheel. By this construction of guidebar or gib, as the fly-wheel is turned the pin S works in the groovedarms R from one side of the vertical slot to the other, sliding thegibup and down on the dovetailed projection of the standard C, with itsupper slotted end working over the journal D, carrying the dasherattached thereto, as hereinbefore described. This form of driving-gearis more especially adapted for heavy churns, as greater leverage isproduced by dispensing with the pitman and taking the leverage directlyfrom the fly-wheel. Additional power may be added, if desired, byapplying a balancewheel, T, to the outer side of the flywheel G, whichmay be secured in place by a screw-nut, t, on the end of the journal D,as shown in dotted lines in Fig. 7.

Having fully described my invention, what l claim as new, and desire tosecure by Letters Patent of the United States, is

l. The combination, with the adjustable standard having its upper endturned to one side to form bearings for each end of the upper journal,and provided with a dovetailed projection on its opposite side, of averticallysliding guide-bar slotted in its upper end and secured to thestandard by holding-clips on the inclined surfaces, the upper or forkedends of the guide-bar being held in position by the upper journal andthe driving-gear, as set forth.

2. The combination, with an adjustable standard having a dovetailedprojection on one side, of a vertically-sliding guide-bar slotted in itsupper part and confined to the inclined surfaces of the standard byclips,.

the arms of the slotted part of the bar being held upon each side of theupper journal and between the collar of the standard and hub of theiiy-wheel on said journal, as set forth.

3. The combination, with a standard having a dovetailed projectionthereon, and a vertically-sliding guide-bar secured thereto, said barbeing slotted in its upper part and its arms passing on each side of theupper journal, of a two-part tubular dasher secured to the guide-bar andhaving conical beaters IOO IIO

on its lower end, one above the other, as set forth.

4. The combination, with an adjustable standard havinga dovetailedprojection on one side, a vertically-sliding slotted guidebar having itsforked ends extending on each side of a journal above, and between thecollar of the standard and hub of the fly-wheel on said journal, saidfly-wheel having a pitman connected thereto and to the lower end of theguide-bar, of a coupling-arm secured to the guide-bar, having a sockettherein holding a two-part tubular flasher-rod having conical slottedbeaters one above the other on its lower portion, said upper dasher-rodbeing adjustable Within the lower and having an air-valve on itsinclosed end, as and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

ELI A. RUDASILL. Vitnesses:

T. E. BORDERS, O. T. GIBSON.

